Is JSON Validator free?

Yes. JSON Validator is free to use in the browser with no signup.

Does my data leave the browser?

No. The tool is designed for browser-local processing by default.

Validate JSON and inspect parse errors locally in your browser.

AppHelp

JSON 校验工具在浏览器本地处理文件或文本，默认不上传。

Valid JSON

Summary

object · 3 keys

{
  "name": "AppHelp",
  "local": true,
  "tools": 20
}

Is JSON Validator free?: Yes. JSON Validator is free to use in the browser with no signup.
Does my data leave the browser?: No. The tool is designed for browser-local processing by default.
What can I export?: Validate JSON and inspect parse errors locally in your browser.